Abstract: A control circuit of a digital control power circuit is provided. The control circuit includes a feedback controller configured to generate a digital duty command value such that a digital feedback value corresponding to an output voltage of the digital control power circuit is close to a target value thereof, a pulse generator configured to generate a pulse signal having a duty ratio corresponding to the digital duty command value, a non-linear controller configured to correct a pulse width of the pulse signal when a variation in the output voltage is detected, and a driver configured to drive a switching device of the digital control power circuit depending on the pulse signal.

Abstract: The disclosure generally relates to a method and an apparatus for providing an adjustable high resolution dead time, and more specifically, to a method and an apparatus for inserting an adjustable high resolution dead time in a PWM signal. A method for inserting an adjustable high resolution dead time in a PWM signal includes receiving a clock signal at a delaying circuitry and generating, by the delaying circuitry, a plurality of phases, receiving the generated plurality of phases at a first multiplexer, and selecting and forwarding, by the first multiplexer, a first phase of the plurality of phases based on a first high resolution dead time value. The method further includes shifting a rising edge and/or a falling edge of the PWM signal using the received first phase forwarded by the first multiplexer.

Abstract: The purpose of the present invention is to improve responsiveness to short-circuit detection and rapidly cut off power supply to a load when a short circuit occurs. When a short circuit occurs, voltage exceeding the reference voltage of a comparison circuit is inputted as an input signal from a voltage output circuit, and a high signal is outputted from the comparison circuit. An FET is turned on by the output of the comparison circuit changing to the high signal. Consequently, an electric charge stored between the gate and emitter of an IGBT is discharged through a resistor, gate voltage decreases, and thereby the IGBT is turned off. The high signal of the comparison signal is held for a predetermined period by a holding circuit, and the IGBT is maintained in the off state over this period.

Abstract: An apparatus includes a first circuit configured to generate a boost voltage, and a second circuit to control a slope of a magnitude of the boost voltage when the magnitude of the boost voltage is reduced. The first circuit is configured to generate the boost voltage having the magnitude equal to a first voltage when a control signal is in a first state, and reduce the magnitude of the boost voltage when the control signal is in a second state and the magnitude of the boost voltage is greater than a second voltage which is less than the first voltage. A method of providing a boost voltage includes controlling a slope of a magnitude of the boost voltage when the magnitude of the boost voltage is decreased.

Abstract: Circuits, devices and methods for achieving small duty cycles in switching regulators. In some embodiments, a method for generating a low duty cycle output voltage can include setting a ramp signal to a first level substantially with a first edge of a clock signal, and ramping the ramp signal from the first level towards a second level such that voltage level of the ramp signal crosses a compensation level, with the ramping beginning at a time before a second edge of the clock signal. The method can further include starting an output pulse substantially with the second edge of the clock signal, and ending the output pulse substantially with an edge of a pulse-width modulation (PWM) signal that results from the ramp signal crossing the compensation level during the ramping.

Abstract: A method and apparatus for detecting a critical duty cycle that maximizes an output power of a boost converter is provided. In the method and apparatus, the boost converter may be operated at or below the critical duty cycle. In the method and apparatus, a first voltage that is a function of an output voltage of a boost converter and voltage drops across a first set of parasitic resistances of the boost converter is detected. A second voltage that is a function voltage drops across a second set of parasitic resistances of the boost converter is also detected. The voltages are compared to determine the critical duty cycle and the boost converter is operated in accordance with a duty cycle that does not exceed the critical duty cycle.

Abstract: A voltage converter can be switched among two or more modes to produce an output voltage tracking a reference voltage that can be of an intermediate level between discrete levels corresponding to the modes. One or more voltages generated from a power supply voltage, such as a battery voltage, can be compared with the reference voltage to determine whether to adjust the mode. The reference voltage can be independent of the power supply voltage. Further, the voltage converter may implement frequency modulation and a pulse skipping mode to improve the efficiency of switching operational states of the voltage converter.

Abstract: A method includes generating a control signal for controlling a switch element, and determining at each switching cycle alternation of an ON interval with storage of energy in the inductor element starting from an input voltage, and an OFF interval with transfer of the energy stored in an inductor element into a storage element on which an output voltage is present. The method includes when the inductor current reaches the first threshold value before the end of a first interval, determining the end of the ON interval at the end of the first interval. The method includes following detection of the ON interval having a duration equal to the first interval, the detection being indicative of a possible short-circuit condition at output, determining the OFF interval having a second duration equal to a lengthened interval longer than the first duration.

Abstract: The invention relates to an apparatus and method for tracking energy consumption. An energy tracking system comprises at least one switching element, at least one inductor and a control block to keep the output voltage at a pre-selected level. The switching elements are configured to apply the source of energy to the inductors. The control block compares the output voltage of the energy tracking system to a reference value and controls the switching of the switched elements in order to transfer energy for the primary voltage into a secondary voltage at the output of the energy tracking system. The electronic device further comprises an ON-time and OFF-time generator and an accumulator wherein the control block is coupled to receive a signal from the ON-time and OFF-time generator and generates switching signals for the at least one switching element in the form of ON-time pulses with a constant width ON-time.

Abstract: A circuit and method for providing an improved current monitoring circuit for a switching regulator. A circuit providing switching regulation with an improved current monitor, comprising a pulse width modulation (PWM) controller configured to provide P- and N-drive signals, an output stage connected to said PWM controller and configured to provide switching, comprising a high-side and low-side transistor, driven by said P- and N-drive signals, respectively, a sense circuit configured to provide output current sensing from the output stage during a sampling period when the N-drive signal is active, and a sampling timing generator configured to provide a an n-sampling signal, nsample, to the sense circuit, wherein a start of the n-sampling signal is delayed by a first delay after the sampling period and the n-sampling signal is ended prior to an end of the sampling period by a second delay.

Abstract: A test device includes a plurality of transceivers that respectively transmit a wave to a test target point of a test object, respectively receive a wave reflected, scattered, or refracted from the test object, and respectively output a signal generated in response to the received wave; a combiner that combines the plurality of received signals generated by the plurality of transceivers; and a plurality of switches that are opened or closed to transfer the plurality of received signals to the combiner or block the plurality of received signals from being transferred to the combiner.

Abstract: A switchable power converter includes a switchable power stage comprising an inductor and a capacitor for generating an output voltage according to a switching signal and an input voltage via a switching element comprising a high-side switch and a low-side switch driven by a driver according to the switching signal generated either in a digital control path or a constant-on-time control path. A multi-mode controller is configured to toggle between a light load mode in which the constant-on-time control path is activated and a high load mode in which the digital control path is activated. The multi-mode controller is further configured to generate a control signal for turning on the high-side switch for an additional time when transitioning from the light load mode to the high load mode.

Abstract: A switched power converter includes a power stage. The power stage includes a sensor for sensing an output current to obtain a sensed output current, a sensor for sensing an output voltage to obtain a sensed output voltage, and a sensor for sensing an input voltage to obtain a sensed input voltage. The power converter further includes a look-up table or mathematical relationship implementation for deriving an efficiency measure of the power converter from the sensed input voltage, the sensed output voltage and the sensed output current by relating an energy taken by a load and an energy delivered by the input voltage for a specific period of time.

Abstract: In accordance with an embodiment of the present invention, a method of operating a power supply circuit includes receiving an input signal comprising a request for a target power supply voltage and/or current at an interface circuit at a secondary side of an adjustable power supply. The input signal is converted into a digital signal comprising the target power supply voltage and/or current. The digital signal is transmitted via a galvanically isolated signal path to a controller in a primary side of the adjustable power supply.

Abstract: A disclosed apparatus includes a converter for receiving a supply and regulating a load. The converter uses a gate driver that is controlled by a controller via a control loop. The control loop controls the converter in response to a feedback signal. The controller is located on a first integrated circuit and the gate driver is located on as second integrated circuit. A process geometry of the first integrated circuit is finer than a process geometry of the second integrated circuit.

Abstract: A switching power supply circuit includes: an error amplifier for amplifying a deviation between a reference voltage and a feedback voltage; a comparator for comparing the reference voltage with an output voltage of the error amplifier, and outputting a predetermined set signal; an ON-time control circuit for defining a period during which a switching element is ON; a flip-flop circuit which is set by the set signal to bring the switching element into an ON- or OFF-state, and is reset by an output signal of the ON-time control circuit to bring the switching element into an OFF- or ON-state; a ripple voltage detection circuit for connecting an integration circuit in parallel to an inductance coil, thereby detecting a ripple voltage contained in the output voltage; and a capacitor connected between the output side of the error amplifier and a junction of a resistor and a capacitor of the integration circuit.

Abstract: An integrated photovoltaic panel has one or more integral DC-DC converter circuits. The DC-DC converter input port couples to a section of at least one photovoltaic (PV) device of the panel separate from PV devices feeding other converters. The converter has an MPPT controller for operating the converter to transfer maximum power from coupled photovoltaic devices to its output port. The PV panel has a transparent substrate to which PV devices are mounted. A laminating material seals PV devices and converters to the substrate. In embodiments, the panel has multiple converters connected with output ports in series. The integrated PV panel provides summed maximum powers of each section of PV devices. In some embodiments the DC-DC converters are complete with inductors, in other embodiments a common inductor is shared by multiple converters of the panel, in a particular embodiment the common inductor is parasitic inductance of the panel.

Abstract: A constant on-time pulse width control-based apparatus used in a voltage converter includes a comparator, a logic circuit, and a controller. The comparator is configured for generating a logic control signal to a logic circuit according to two resultant signals of the controller. The logic circuit is configured for generating a pulse control signal with an on-time pulse width to charge an output capacitor of an output stage circuit of the voltage converter according to the logic control signal. The controller is configured for generating the two resultant signals to the comparator by detecting an inductor current signal from an inductor of the output stage circuit, generating a voltage ramp signal, amplifying and generating an output voltage ripple signal based on a reference voltage.

Abstract: A voltage converter can be switched among two or more modes to produce an output voltage tracking a reference voltage that can be of an intermediate level between discrete levels corresponding to the modes. One or more voltages generated from a power supply voltage, such as a battery voltage, can be compared with the reference voltage to determine whether to adjust the mode. The reference voltage can be independent of the power supply voltage. Further, the voltage converter may implement frequency modulation and a pulse skipping mode to improve the efficiency of switching operational states of the voltage converter.

Abstract: A system includes an inductance, a sensing circuit, a filter circuit, and a switch. The inductance includes a first terminal connected to (i) an output of a power supply supplying a DC voltage and (ii) a load, and a second terminal connected to a node. The sensing circuit is configured to sense voltage at the node. The filter circuit is configured to filter the voltage at the node, and output a filtered voltage. The switch is configured to communicate with the node, and control current through the load based on the filtered voltage.

Abstract: The present disclosure relates to a switching power converter, a control circuit and an integrated circuit therefor, and a constant-current control method. The control circuit samples a valley value of an electric current through a first power transistor in a power stage circuit and a peak value of an electric current through a second power transistor in the power stage circuit, and obtains parameters representing an output current in accordance with an average value of the valley value and peak value. Thus, the constant-current control can be performed by sampling the electric current through the first power transistor and the second power transistor. Moreover, the switching power converter simplifies a current feedback loop for outputting a constant current, and the integrated circuit has fewer pins.

Abstract: There is provided an output circuit for supplying an output current to a load coupled to an output terminal in response to an input signal. The output circuit includes an output transistor for supplying the output current to the output terminal, an output-drive circuit for driving the output transistor, a constant-current limiting circuit for generating a current control signal for limiting the output current to a predetermined current value, and a control circuit for implementing a control such that the output current is controlled on the basis of the current control signal if a voltage at the output terminal is at a predetermined voltage, or less after the input signal is supplied while the output transistor is driven by the output-drive circuit if the voltage at the output terminal is in excess of the predetermined voltage.

Abstract: Disclosed are methods and apparatus for a lighting unit (600) that may adaptably achieve a plurality of lighting effects. A plurality of LEDs (641) producing a light output having at least one adaptable light output characteristic may be provided and controlled by a controller (650) electrically coupled to the plurality of LEDs (641). The controller may control the at least one adaptable light output characteristic in accordance with received lighting configuration data (651) that is specific to a particular lighting implementation (606).

Abstract: A voltage converter includes first and second charging elements, first and second switches, and first and second switch controllers. The first switch controller adjusts a first activation timing of a first control signal in response to a pulse width modulation signal, a switch signal, and a first control signal. The first control signal is a signal for controlling the first switch. The second switch controller adjusts a second activation timing of a second control signal in response to the pulse width modulation signal, the first control signal, and a second control signal. The second control signal is a signal for controlling the second switch.

Abstract: A half-bridge includes a first switching device for connecting a terminal to a first potential, and a second switching device for connecting the terminal to a second potential. A method according to the present invention for controlling the half-bridge includes the steps of outputting a closing signal for the first switching device while the second switching device is open, and of ascertaining a latency period between the start of the closing signal and a collapse of a voltage applied across the first switching device. Subsequently, a dead time that lies between an opening of the second switching device and a closing of the first switching device is minimized on the basis of the ascertained latency period.

Abstract: A diagnostic system for a power supply having first and second output terminals that output first and second reference voltages, respectively, is provided. The diagnostic system includes a microcontroller having an analog-to-digital converter with first and second banks of channels. The microcontroller samples the first reference voltage at a first sampling rate utilizing a first common channel in the first bank of channels to obtain a first predetermined number of voltage samples. The microcontroller determines a first number of voltage samples in the first predetermined number of voltage samples in which the first reference voltage was outside of a predetermined voltage range. The microcontroller sets a first power supply diagnostic flag equal to a first fault value if the first number of voltage samples is greater than a first threshold number of voltage samples.

Abstract: An illustrative converter embodiment employs an oscillator comprising a capacitor and a comparator. The capacitor is alternately coupled to a charging current source and a discharging current source, the charging current source operating to charge the capacitor at a first rate and the discharging source operating to discharge the capacitor at a second rate. The comparator asserts an output signal when the capacitor charges to a first threshold voltage and deasserts the output signal when the capacitor discharges to a second threshold voltage. The first rate may be proportional to the input voltage and the second rate may be fixed. The output signal may be applied to the gate of a transistor to alternately apply the input voltage across an inductor and to apply current from the inductor to a capacitance. The duty cycle of the output signal is inversely proportional to the input voltage, or at least approximately so.

Abstract: Methods and systems are provided for control operation of a boost converter. The boost converter includes an input, an output, and a plurality of paths electrically connecting the input to the output. The boost converter also includes a plurality of switches disposed along the paths to control current flow between the input and the output. The system includes a controller. The controller receives a desired current to be supplied at the output. The controller determines which of the paths to utilize based at least in part on the desired current. The controller controls the switches based at least in part on the determination of which of the paths to utilize.

Abstract: A motor drive device includes: an inverter circuit having a smoothing capacitor; a drive circuit portion which outputs an operation signal to the inverter circuit; a control portion which controls the drive circuit portion; and an operating voltage generation portion which supplies power to the drive circuit portion and the control portion by generating an operating voltage for the drive circuit portion and the control portion. The inverter circuit converts a DC voltage from a first power supply to an AC voltage and outputs the AC voltage to a multi-phase motor coil. The control portion outputs a signal to the drive circuit portion according to a command value from a high-level control device operating on power from a second power supply outputting a voltage lower than the first power supply. The operating voltage generation portion is capable of generating the operating voltage using power fed from either of the first power supply and the second power supply.

Abstract: Systems and methods for providing a boost converter with an improved stability are disclosed. A sample and hold circuit is connected to the output of the boost converter. That sample and hold circuit holds the output voltage before the main switch of the boost converter turns ON and holds the voltage while the main switch is ON. Thus a high frequency oscillation can be eliminated, an increased control bandwidth without stability problems can be achieved, and no complicated additional circuit is required.

Abstract: Provided is a converter system including: a plurality of converter modules connected to one power source in parallel; and a controller for storing mapping information of first parameters corresponding to processing power of the converter modules and second parameters corresponding to the number of converter modules that optimally process the processing power among the converter modules, configuring a value of the first parameter according to a measurement value of power input into the converter modules or power output from the converter modules, calculating a value of the second parameter by substituting the value of the first parameter into the mapping information, selecting the number of converter modules corresponding to the value of the second parameters as active converter modules from the converter modules and processing the processing power by using the active converter modules, and controlling output power of the active converter module to gradually increase or decrease in a transient state where the

Abstract: A control circuit for switching converter has an ON signal generating circuit, a current sensing circuit, an OFF signal generating circuit, a logic circuit and an OFF threshold generating circuit. The ON signal generating circuit provides an ON signal based on a reference signal and a feedback signal. The current sensing circuit provides a current sensing signal based on a current flowing through a power switch of the converter. The OFF signal generating circuit provides an OFF signal based on an OFF threshold signal and the current sensing signal. The logic circuit provides a control signal based on the ON signal and the OFF signal. The OFF threshold generating circuit adjusts the OFF threshold signal based on the difference between a frequency of the switching signal and a preset frequency, so as to make the frequency of the switching signal substantially equal or larger than the preset frequency.

Abstract: One current source includes a first transistor including a drain connected to an output terminal, and a source directly connected to a first power supply, a second transistor including a drain connected to a gate, the gate of the second transistor being connected to the gate of the first transistor, and a source directly connected to the first power supply, a third transistor opposite the first channel type including a drain connected to the drain of the second transistor, a fourth transistor including a drain connected to the source of the third transistor, a gate connected to a first bias voltage, and a source directly connected to second power supply voltage, and a control voltage generator that detects an output voltage on the output terminal and provides a shifted version of the output voltage to the gate of the third transistor.

Abstract: A power supply device comprising: a switching power supply unit which operates in accordance with a PWM signal; and a controller configured to generate the PWM signal, the controller includes: a switching frequency control unit configured to generate a spreading spectrum signal whose period is changed, an output voltage detecting unit configured to detect an output voltage of the switching power supply unit, a reference voltage unit configured to generate a reference voltage, a difference computing unit configured to calculate a difference between the output voltage and the reference voltage, a compensator configured to generate a compensating value from an input voltage of the switching power supply unit, the reference voltage, and the period of the spreading spectrum signal, and a PWM generator configured to generate the PWM signal from the spreading spectrum signal and the compensating value.

Abstract: A switching power supply device includes an output voltage detection unit that outputs an output voltage detection value. The control circuit includes: a target voltage generation unit that generates an output voltage setting value; an A/D conversion unit that A/D converts an error between the output voltage setting value and the output voltage detection value; a digital compensation unit that computes an amount of control based on an output signal of the A/D conversion unit; and a PWM signal generation unit that generates a PWM signal for the switching element based on the amount of control. The target voltage generation unit detects a standby state based on the output voltage detection value, the output signals of the A/D conversion unit and the digital compensation unit, and in the standby state, switches the output voltage setting value to a second value lower than a value for another state.

Abstract: An apparatus and method are disclosed for providing efficient operation in a feedback loop having a synchronous buck converter. The synchronous buck converter includes a plurality of individually selectable phases, where each of the phases has a plurality of individually selectable and parallel switching legs. The circuit stores information that associates multiple different load values with respective configuration settings that each define a number of phases and a number of switching legs. As the load changes, the circuit measures the load and selects an appropriate configuration setting. The circuit applies the selected configuration setting to operate the number of phases and a number of parallel switching legs in the buck converter.

Abstract: A power switching voltage regulator includes a high-side switch, a low-side switch, an inductor, a detection circuit, and a gate voltage adjusting unit. The high-side switch is coupled to a voltage source; the low-side switch is coupled between the high-side switch and a ground. A connection node is located between the high-side switch and the low-side switch. The inductor is coupled between the connection node and a power output terminal of the power switching voltage regulator. The detection circuit detects an output voltage of the power output terminal, when the output voltage swings out of a predetermined range. The gate voltage adjusting unit dynamically adjusts a gate voltage on-resistances of the high-side switch and the low-side switch.

Abstract: A zero-crossing detection circuit can include: a state judging circuit that generates a judging signal based on whether a body diode of a synchronous power switch is conducting when the synchronous power switch is off; a regulation voltage generator that reduces a regulation voltage when the judging signal indicates that the body diode is conducting, and increases the regulation voltage when the judging signal indicates that the body diode is not conducting, where a detection voltage includes a sum of the regulation voltage and a voltage at a first terminal of the synchronous power switch; and a comparison circuit that compares the detection voltage against a voltage at a second terminal of the synchronous power switch, and generates a zero-crossing detection signal that is activated to turn off the synchronous power switch when the detection voltage equals the voltage at the second terminal of the synchronous power switch.

Abstract: A power converter and a method of operation thereof is disclosed including an input, an output, a sensor unit, a switched power converter, and a processor module. The power converter may convert an input power into an output power. The power converter may sense real-time measurements of the input power and the output power to determine a real-time calculated efficiency. The power converter may chop the input power into sized and positioned portions of the input power based on a plurality of determined operating parameters. The power converter may determine the operating parameters based on the real-time calculated efficiency and on a plurality of other operating factors/conditions.

Abstract: In an embodiment, an apparatus, such as a power-supply controller, includes a generator and an adjuster. The generator is configured to provide a switching signal that causes a power supply to generate a regulated output signal, and the adjuster is configured to impart a condition to the power supply while the power supply is operating in a first mode, the condition being approximately equal to a condition that the power supply would have if the power supply were operating in a second mode. For example, such an apparatus may be able to reduce or eliminate a transient on a regulated output signal (e.g., a regulated output voltage) when a power supply transitions from a first operating mode, such as a pulse-frequency-modulation (PFM) mode, to a second operating mode, such as a pulse-width-modulation (PWM) mode.

Abstract: A control circuit for controlling a switching circuit has a ramp compensation circuit, a DC calibration circuit, a comparison circuit and a logic circuit. The ramp compensation circuit generates a ramp compensation signal. The DC calibration circuit generates a DC calibration signal by sampling and holding the ramp compensation signal. The comparison circuit generates a comparison signal according to the ramp compensation signal, a feedback signal representative of an output voltage of the switching converter, a reference signal and the DC calibration signal. The logic circuit generates a control signal to control the switching circuit according to an on-time signal and the comparison signal.

Abstract: An electronic device may be configured to identify a load coupled to the device. The device may measure direct current (DC) and/or alternating current (AC) characteristics of the load to identify the load. The device may then take action based on the identification of the load. For example, a specific transducer may be identified as coupled to the electronic device and an appropriate equalization curve applied to an audio output of the device. The measurement of characteristics of the load may include controlling a reference generator according to a search algorithm, such as a step ramp or binary search, to identify the load. An analog-to-digital converter (ADC) may operate through the search algorithm to provide feedback to digital circuitry regarding how to proceed through the search algorithm to identify the load.

Abstract: A regulated DC-DC switching converter includes a bypass mode in which ends of an output inductor are coupled together. Circuitry determines output capacitor current and load current components of output inductor current during operation of the switching converter, for use in controlling switching operations.

Abstract: A method of manufacturing a semiconductor memory device according to an embodiment comprises: alternately stacking first inter-layer insulating layers and first layers above a substrate; forming a first opening penetrating the layers stacked above the substrate; and forming a gate insulating layer and a semiconductor layer in the first opening. In addition, the method comprises: forming a second opening penetrating the layers stacked above the substrate; and forming a second inter-layer insulating layer on an inner wall of the second opening. Moreover, the method comprises: forming a first silicide layer and a barrier metal layer on the bottom surface of the second opening; and forming a silicon layer in the second opening such that a crevice is formed in an upper surface of the silicon layer along the second opening. Furthermore, the method comprises: removing part of the silicon layer; and siliciding the silicon layer via the crevice.

Abstract: Example switching power converters and methods for reducing voltage changes at an output of a power converter are generally disclosed. According to one aspect, a switching power converter includes an input, an output for providing an output voltage, at least one switch capable of causing a voltage overshoot of the output voltage when the switch is turned on, and a controller. The controller is configured to sense the output voltage, compare the sensed output voltage to a voltage reference, and adjust operation of the power converter based on the comparison of the sensed output voltage and the voltage reference to maintain the output voltage. The controller is further configured to decrease the voltage reference from a normal operation value to an overshoot reduction value before turning on the switch to decrease the output voltage and reduce an overshoot of the output voltage in response to turning on the switch.

Abstract: Disclosed is a signal processing circuit including an analog-to-digital converter, an arithmetic processing unit electrically connected to the analog-to-digital converter, and a first register electrically connected to the arithmetic processing unit. The extremely small off-state current of a transistor included in the first register allows the first register to retain a signal output from the arithmetic processing unit. This structure enables stationary driving of a load even if the signal processing circuit is turned off, which contributes to a reduction in power consumption of an electronic device having the load.

Abstract: Example embodiments of the systems and methods of non-invasive continuous adaptive tuning of digitally controlled switched mode power supply based on measured dynamic response disclosed herein rely on time domain measurements for the tuning rather than on frequency response to automatically tune the system for stability and good dynamic performance. In particular, an algorithm directly measures overshoot and settling time to transients. Using this information, the algorithm minimizes both overshoot/undershoot and settling time by adjusting the parameters of a digital compensator. Since time domain measurements are directly used, the implementation does not require an additional perturbation in the system that otherwise would be necessary.

Abstract: A switching circuit switches a first IGBT and a second IGBT. A control circuit is equipped with a first switching element that is configured to be able to control a gate current of the first IGBT, a second switching element that is configured to be able to control a gate current of the second IGBT, and a third switching element that is connected between an electrode of the first IGBT and an electrode of the second IGBT. The control circuit controls a turn on timing and turn off timing.

Abstract: A power control device includes a control circuit configured to control a power source as a control target; and a control calculation unit configured to calculate a manipulation amount by which the control circuit controls the power source, wherein when a disturbance occurs in the power source, the control calculation unit adjusts the manipulation amount based on a predetermined parameter in the manipulation amount during a disturbance occurrence period.

Abstract: The present disclosure includes circuits that have a switching regulator and methods of operating the circuits. The switching regulator may receive a switching signal that has a switching frequency. The circuit also includes a monitor circuit to monitor the switching frequency, and includes a reconfigurable inductance coupled to an output of the switching regulator. The monitor circuit may change the reconfigurable inductance. The circuit includes an amplifier to receive an envelope tracking signal. An output of the amplifier is coupled to the output of the switching regulator to provide a power supply voltage. The circuit may further include a switching generator circuit to produce the switching signal for the switching regulator based on an output current of the amplifier. The monitor circuit may compare a frequency of the envelope tracking signal to the switching frequency of the switching signal and accordingly change the reconfigurable inductance.